tic 0.10.0

General

• Drop Travis support (#295)
• Drop Appveyor support (#296)
• Bump templates: install required libgit2 required by usethis v2.0.0 (tic dep)
• Run r-devel on ubuntu instead of macOS
• DSL: Don't add steps twice, if present in a previous macro (#272)
• use_tic(): use GitHub Actions as the default provider for all platforms
• update_yml(): Support updating multiple YAML files
• Update instructions for spatial libs on macOS for GHA

GitHub Actions templates

• Update actions/checkout to v2.3.4
• Update actions/upload-artifacts to v2.2.1
• Update pat-s/always-upload-cache to v2.1.3
• Update peter-evans/create-pull-request action in update-tic.yml template to use latest master
• Add workflow_dispatch event trigger to templates

Bug fixes

• step_setup_ssh() now verifies that {git2r} is installed. This prevents build failures for {rsconnect} deployments
• gha_add_secret(): Add new upstream parameters and fix endpoint
• Replace hardcoded references to "master" by a dynamic query of the default repo branch
• Conditionally install pkgdown required system libs on both Linux and macOS
• gha_add_secret(): Fix owner/repo output when calling the function from a different repo root (#299, @gadenbuie)